When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
If b = -5 and z = -3, what is the value of -7b(b - z)?
| -168 | |
| -6 | |
| -70 | |
| -72 |